diff --git a/src/Speckle.Sdk/Api/GraphQL/Inputs/ModelIngestionInputs.cs b/src/Speckle.Sdk/Api/GraphQL/Inputs/ModelIngestionInputs.cs
index 9f243b11..1215d034 100644
--- a/src/Speckle.Sdk/Api/GraphQL/Inputs/ModelIngestionInputs.cs
+++ b/src/Speckle.Sdk/Api/GraphQL/Inputs/ModelIngestionInputs.cs
@@ -19,7 +19,12 @@ public record ModelIngestionCreateInput(
 
 public record ModelIngestionUpdateInput(string ingestionId, string projectId, string progressMessage, double? progress);
 
-public record ModelIngestionSuccessInput(string ingestionId, string projectId, string rootObjectId);
+public record ModelIngestionSuccessInput(
+  string ingestionId,
+  string projectId,
+  string rootObjectId,
+  string? versionMessage
+);
 
 public record ModelIngestionFailedInput(
   string ingestionId,
diff --git a/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ModelIngestionResourceTests.cs b/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ModelIngestionResourceTests.cs
index bb25a5be..829deb5a 100644
--- a/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ModelIngestionResourceTests.cs
+++ b/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ModelIngestionResourceTests.cs
@@ -130,7 +130,7 @@ public sealed class ModelIngestionResourceTests : IAsyncLifetime
       new(true, true)
     );
 
-    ModelIngestionSuccessInput finish = new(ingest.id, _project.id, sendResult.RootId);
+    ModelIngestionSuccessInput finish = new(ingest.id, _project.id, sendResult.RootId, "yay!");
     string versionId = await Sut.Complete(finish);
     Version version = await _testUser.Version.Get(versionId, _project.id);
     Assert.Equal(version.id, versionId);